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Q:

A train 500 m long, running at a uniform speed, passes a station in 35 sec. If the length of the platform is 221 m, the speed of the train in km/hr is

A) 721/35 B) 74.16
C) 24.76 D) 78.54
 
Answer & Explanation Answer: B) 74.16

Explanation:
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Filed Under: Problems on Trains
Exam Prep: Bank Exams

Q:

Consider the following chemical reaction :

aFe2O3(s) + bCO(g) + cFe(s) + dCO2

In the balanced chemical equation of the above, which of the following will be the values of the coefficients a, b, c and d respectively?

A) 3, 2, 3, 1 B) 1, 3, 2, 3
C) 2, 3, 3, 1 D) 3, 3, 2, 1
 
Answer & Explanation Answer: B) 1, 3, 2, 3

Explanation:

Fe2O3 + 3CO = 2Fe + 3CO2

Hematite + Carbon Monoxide = Iron + Carbon Dioxide

In this reaction, the iron oxide is reduced to iron, and the carbon is oxidised to carbon dioxide.

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Filed Under: Chemistry
Exam Prep: Bank Exams

Q:

The ratio of the ages of two boys is 3:4. After 3 years, the ratio will be 4:5.The ratio of their ages after 21 years will be

A) 14:17 B) 17:19
C) 11:12 D) 10:11
 
Answer & Explanation Answer: D) 10:11

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

Q:

X can do a piece of work in 'p' days and Y can do the same work in 'q' days . Then the number of days in which X and Y can together do that work is

A) p+q2 B) 1p+1q
C) pqp+q D) Pq
 
Answer & Explanation Answer: C) pqp+q

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Filed Under: Time and Work
Exam Prep: Bank Exams

Q:

In terms of economics, if it is possible to make someone better­off without making someone worse­off, then the situation is

A) Inefficient B) Efficient
C) Optimal D) Pareto­superior
 
Answer & Explanation Answer: D) Pareto­superior

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Filed Under: Indian Economy
Exam Prep: Bank Exams

Q:

Which of the following vitamins are water soluble?

A) Vit. A & Vit. B B) Vit. B & Vit. C
C) Vit. C & Vit. D D) Vit. A & Vit. K
 
Answer & Explanation Answer: B) Vit. B & Vit. C

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Filed Under: Biology
Exam Prep: Bank Exams

Q:

In which city is India's first Post Office ATM opened?

A) Chennai B) New Delhi
C) Hyderabad D) Mumbai
 
Answer & Explanation Answer: A) Chennai

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Filed Under: General Awareness
Exam Prep: Bank Exams

Q:

Meibomian glands are located in

A) Eye B) Ear
C) Nose D) Skin
 
Answer & Explanation Answer: A) Eye

Explanation:
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Filed Under: Biology
Exam Prep: Bank Exams